Oil-cup.



(Application med .m1, 1s, 1902;)

(No Modal.)

Niiinn, STATES PATENT' OFFICE.

JOEL B. L. MCKENZIEEUF RAHWAY, NElV JERSEY.

SPECIFICATION forming part of Letters Patent No. 702,068, dated J' une10, 1902. Application filed January 13, 1902. SerialNo. 89,402. (Nomodel.)

To all whom, it may consent:

Be it known that I, JOEL B. L. MCKENZIE, a

. citizen of the United States, residing at Rahway, in the county'ofUnion, in the State of New Jersey, have invented a certain new anduseful Improvement in Oil-Cups, of which the following is aspecification.

The improved oil-cu p is intended to be carried on actively-movingpieces of machinery which shall have more or less of a reciprocatingmotion. I provide an easily-moving valve controlling the ow ofdoil and alooselymounted part carried on theoilcnp arranged to actuate the valveby its inertia as the motion of the actively-moving. cup is reversed. Iuse the term inertia to include both the resistance to moving fr'om astate of rest and the resistance to stopping from a state of motion.Ilirnit the extentof the motion of such part relatively to the main bodyof the oilcup, make the motion of thevalve conveniently adjustablewithin wide limits, and nallyinsure that the valve shall always standshut when the engine is stopped irrespective of the position of thecrank' and insure against any obstruction of the actionl in case thereshall accidentally be solid matter of any kind in the oil.

The end attained of feeding with certainty.

while operating and entirely arresting the lfeed when stopped in anyposition has been partially attained before; but my construction isbetter in important points, which will be pointed out in the claims. f

The following is a description et what I consider the best means ofcarrying out the invention.

The accompanying drawings forni a part of this specification.

Figure 1 is a side elevation with certain portions broken away, showinginterior parts iu central vertical section. Fig. 2 'is a correspondingplan View.' Fig; 8 is an elevation at right angles to the view in Fig.l.- Fig. 4

is a cross-section of the valve-rod at the, lineV 4 4 in Fig. 4". Fig. 5isa side elevationl of a portion', showing a modification. Fig. G is acentral vertical section showing another m odication. spending to Fig.Il.

Similar letters of refcreneeilldicate corre- Fig. 4 is a side elevationcorre-4 sponding .parts in all the figures where they appear. i j

A is the main body of the cup, which may be of brass, having two liberalapertures on opposite sides, The tubular base A is screwthreadedexternally. The upper portion of riable, but is never sufficient to liftthelower end out of the enlarged bore or chamber'a'.

The o'il'can always flow down through the small annular space betweenvthe rod and the cylindrical portion of the bore a' and can ilowdownward through the smaller opening a at intervalswhile the valve islifted.

C is a cylinderof glass within the main-bod y A andabutting by itssmooth upper and lower edges on cork washers C and C2. This conipleteglass cylinder constitutes the oil-receptacleLthe niain body A-servingas a supporting 'and protecting case, the liberal apertures or windowsvtherein allowing the vquantity of oil remaining'in the cup to be easily'recognized under all conditions. I

D is `a cover screwed tightly into the bodyy A in the erdinaryandobvious manner, making a close t around therod BI in asleeve tapped in acentral `orifice d, countersunk, as shown. \Vhen the apparatus isworking, the conical space thus provided is partially Iled withoil,whicl1 is splashed about in the cup' and alternately drawn up andcarried down by its adhesion to `the slightly reciprocating rod.

The lower end of the sleeve has a hanging lipl providing an annularspace ,around the rod in which I fit a cork washer Il, extending alittle deeper than the lip. Below thisis a loose collar E, under whichabuts'a helical springv F, which exerts a tension acting on Vthe rodthrough the medium of a transverse pin G. This spring contributes itsforce to the gravity of the rod to induce the prompt elosingof the valveto remain closed whenever the engine IOO is stopped, but its force mustbc so gcntlehthat i the inertia ofalight pendulous partcan overconieit.' `I provide for adjusting this tension by' providing severaltransverse holes b b2 b3 b4 one above another in the rod B, any onetemporarily forced upward by the finger, and

the pin G is shifted into a hole b' above or a hole b2 below its formerposition. AThe holes are bored in various directions, (see Fig. 4,)which arrangement allows them to be very near together, cutting intoeach other at the. center, if desired. This gives a capacity for verydelicate adjustment.

I. provide for the admission of air to the interior of the cup as theoil is consumed. To eect this, a hole b3 is bored radially into the rodB and caused to communicate with a central passage b4, which extendsdown from the upper end'of the rod, and the cap P is provided with'acorresponding central hole. This hole p in the cap communicating throughthe axial passage b4' and the radial passage b3 forms a sufficientpassage for the induction of air. Thepassage thus arranged is wellshielded, and I have determined by experiment that oil is not thrown upinto this passage, except to avery small distance, even with the mostrapid action of the engine.

J is a screw-plug which by the aid of a leather washer J controls aconvenient' filling hole through whichV the cup may be charged atintervals.

A suflcient length at the upper end of the rod B is screw-threaded, asindicated-by B2, and on this is fitted an interiorly-screw-threadedcollar M, above which is acorrespondingly! tapped knob P.

I is a horizontal shaft mounted in a long bearing D', formed in anattachment D2, rigidly -secured on the cover D. The outer end of theshaft I overhangs and carries a pendent arm I', which as the device isreciprocated is acted on by inertia and caused to vi brate between twostops D*1 and D5,which form.

part of the attachment D2. The inner end of the shaft I carries arigidly-fixed toe I2,`

which at each revolution of the engine acts under thecollar M to liftthe rod and open the valve.

The extent to which the valve will be lifted and the length of timewhich it will remain open are modied at will by raising and lowering thecollar M. Under ordinary conditions this collar is set at such heightthat the rod B is lifted a little, but only a little, for a brief periodand allowed to sink again to its seat at each revolution of the engine.If it be desired to supply the oil more liberally, the cap can beslackened,the collar` M lowered by turning it, and the knob P againtightened down upon it.- Now the same motion of the arm I between thestops D D?.

will lift the rod higher at each revolution of the engine and hold itopen longer, thus permitting more oil to descend to lubricate thebearing. (Not shown.) The valve is free when the pendent arm I hangs inor near its central position. This condition is certain to obtainwhenever the engine is stopped, so that the oil will be certainly'retained ready for starting again.

I esteem the following to be specially important qualities in myoil-cup: first, that l the extent of the swinging motion of the pendentarm I is limited by so simple and substantial a device as the two stopsD and D5, each constituting a part of a single integral piece which -maybe :fixed on the cover by a single fastener, and that the extent of thelift of the valve may be regulated with any required fineness and to avery great extent by simply screwing the collar M up and down; second,that a partial vacuum and a strong pressure above atmosphere alternatelyobtain in the recess a at each rise and descent of the rod B, causingthe oil to be irst'forcibly drawn in and strained through the verylimited space around the base of the rod in suchrecess and a momentlater tov be forced downward through the oil-passage c by the descentof.` the said rod, and, third, that the force of the spring F need notbe graduated nicely, but caribe varied as required bysimply'compressingit upward and changing the pin G into a diifereithole.

Modifications may be made' without departing from the principle orsacrificing the advantages of the invention. Instead of screwing thepart P down tightly upon the collar M after each adjustment I can keepit much higher and without shifting its position can use a helicalspring exerting so milch force between these parts that it will by thefriction due to the axial tension of the spring insure the holding ofthe collar after each ad justment. Such an arrangementis shown in Fig.1i, the spring being marked Q.

V A horizontal shaft substantially equivalent to the shaft I andcorrespondingly actuated by the' inertia ofa pendent arm I may inlOO-valve operate throughscrew-threads to raise it by turning motion. Fig.6 shows such a modiicatiori.'l In this a thickened portion B55# of therod Bis provided with a quick screw-thread and matches in acorresponding internal thread produced in the boss D'. There is a valveformed on the lower eX- tremity of the rodB and working over a seatwithin a cylindrical space aj, corresponding to a', except that the rodhas a turning motion. `The spring Fiji, coiled around the rod, tindsfanabutment at the upper end in a fixed part and acts at its lower endnotonly to depress the rod B E, and therefore to urge the valve gently buteffectively into contact with ,its seat inthe bottom of the cylindricallooseradially' on the cover, and the toe I2# extendsA rod B# in thedirection to raise itand openthe valve. p During the remainder of thetime the arm I hangs perpendicularly the valve-rod B# is free and iscaused to turn under the innence of its spring Fi# until -it is againfully depressed with lthe valve resting H and the recess holding thesame.

firmly in its seat.

Parts of the invention can be used without others. I can dispense withthe cork washer The airpassage b3 b4 may be omitted, allowing the air toenter through the loose joint around ythe .rod B.

The cover D may be formed with a thick boss cast integral therewithinstead of a separate sleeve. Such construction is shown in Fig. 6 andmay be applied with equal success .1 arranged to be vibratcd byitsmomentum,

in combination with the fork D4 D limiting its play, and with the toe l2rigidly connected to such arm and extending horizontally, adapted tolift said valveerod at one extreme of its traverse, all arranged'forjoint operation substantially'as hereinv specified.

2. In a lubricator for use on moving parts of machinery, the valve-rod Band the collar M adjustable thereon, and the pendent arm I' arranged tobe vibrated by its momentum,`

in combination with the fork D4 D-5 limiting its play, and with the toeI2 rigidly connected to such arm and extending horizontally, ar

ranged to lift said valve-rod at one extreme of its traverse, and therecess a communicating with the oil-'passage below and receiving thenearly tight-fitting base of the said rod, adapted to form a partialvacuum at' each vibration,`and with the spring F and adjustable pin Gadapted to vary the force with which the rod shall be depressed, allarranged to serve substantially as herein specific In testimony that Iclaim the invention above set forthI affix my signature in presence oftwo witnesses.

JOEL'B. L. MCKENZIE. Witnesses:

J. B. CLAUTICE, M. F. BoYLE.

